You should have received the pdf scan of the manual for the Excalibur Viper in your email.

I got my Viper from ebay, and of course, it did not come with the manual. It's not intuitive at all. Yeti was kind enough to scan his manual for me. I'm sure you'll be happy to know what all those funny looking symbols mean.

Please let us all know how the Viper compares with your Amethyst. Many chess computers were marketed by different distributors using different names, so it wouldn't be surprising at all if these were identical units except for the name!

Thanks marko! Good to know there are some manuals available at the ChessHouse. I needed the one for the Viper, which Yeti was kind enough to scan for me. There were a lot of manuals available at the old Excalibur site, and it would be nice if the new owners made those manuals available once again. In the meantime, it's also good to know that we have resources like this site and you as well.

Cool, thanks Tony. Apparently they have been taken over by a company named "EB Brands." I left a voice mail at their New York number. They don't list an email address or any other contact info. Let's see if I get a response.